Suction-box.



B. B. FARNHAML PATENTBD DEC. 25, 1906. I

X 0 B N O I m 0 U D I APPLICATION FILED SEPT. 4. 190

' 2 SHEETS-SHEET}.

4 TTOR/VE V5 To all whom, it may concern: 1

Unrrnn sirnrns PATENT. OFFICE;

BION B. FARNHAM, OF NIAGARA FALLS, N EW YORK.-

sucracwsox.

Specification of Letterslatent.

Patented Dec. 25, 1906.

Application filed September 4, 1906. Serial No. 333,197

Be it known that I, BION- B. FARNHAM, a citizen of the United States,residing at. Ni agara Falls, in the county of Niagara and State of NewYork, have invented a new and useful Suction-Box, of which the followingis a s ecification. his invention relates to suction-boxes or rolls suchas are used particularly in connection with paper-making machinery.

."lhe Objects of the invention are to improve and simplify theconstruction of such devices; furthermore, to increase their efiiciencyin operation and to decrease the expense attending their manufacture.

With the foregoing and other objects in view, which will appear as thedescription" proceeds, the inventionresides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the reciseembodiment of invention herein disc osed can be made within the scope ofthe following claims without departing from the spirit ofthe inventionor sacrificing any of its advantages.

In the accompanying drawings, forming part of this specification, Figure1 is a longitudinal section on the line -1 1 of Fig. 5, part1 inelevation, showing one end of a suction- 'oX constructed in accordancewith the invention. Fig. 2 is a similar view on the line 2 2 of Fig. 5.Fig. 3 is a detail view of the rack-and-pinion mechanism for moving theregulating devices of the suction-box.

Fig. 4 is aside elevation, partly broken away,

of a suction-box. constructed inaccordance with the invention. Fig. 5 isan end elevation, partly in section. Fig. 6 is a view in elevationlooking at the inner side of one of the end plates, and Fig. 7' is aperspective view of one of the adjustable cut-ofl plates.

I Like reference numerals indicate ,Corres onding parts in the differentfigures bf the rawings.

The improved suction-box of the resent invention consists of acylindrical bo y portion or roll 1, which is formed around itsperipherywith a plurality of longitudinally-ex;

tending stiction-passa es 2, which are open at both ends and are 0 anysuitableshape in cross-section. Each of the suction-passages 2 is formedwith a plurality of radially-extending inlets 3, which are ta eredinwardly from the eriphery of the roll, as shown in Fig. 1. heroll 1preferably is wrapped with Wire 4, as shown in Fig. 4. It will beunderstood that when suction is exerted u on the suction-passages 2, aswill hereina ter appear, air 1s drawn inward through the inlets 3 andalso through the web of paper which covers saidinlets. For the purose ofshutting oil or closing some of the inets 3 at the two ends of each.suction-passage 2 when the-machinery is operating upon a narrow web ofpaper or when for any other reason it becomes desirable that onl the inlets 3 adjacent the central portion oi: the roll shall be open, each ofthe suction-passages 2 is provided witha stationary metallic lining 5,through which extend some of the inlets 3,

nal sliding movement in each metallic linin 5 is a sleeve 6, which whenit is moved tower the middle of the roll is adapted to coverand closesome of the inlets 3. .It will be understood that the arrangement of thelining 5 and sleeve 6 shown in Fig. 1 is duplicated; at' theopposite endof the roll. or suction-box. The means for simultaneously adjusting thesleeves 6 of the different suction-passages toward or. from the middleof the roll prefer as shown in Fig.1. Mounted'for longitudimeans ofradial arms 12. It will-be obvious i that when the rod 7 is rotatedinone direcion the sleeves 6 at the opposite ends of gach suction passageZ'Will be moved toward each other to close some of the inlets 3 and thatwhen said rod 7 is rotated iiiithe opposite direction the sleeves willbe riioved away from each other to open said inlets. p The means forsimultaneously rotating all the rods 7 of the dilierent suction-passages2 preferably consists bf an annular rack 13, the internal teeth 14 ofwhich are adapted to mesh with a plurality. of pinions 15, each of whichis ,ri 'dly mounted on one of the threaded rods 7, so that b rotatingthe rack 13 with respect to the r01 or suction-box 1 I the rods 7 willbe simultaneously rotated to adjust the sleeves 6. The annular rack 13is provided with an annular flange 16, which I fits into a suitableannular groove in the pethe end piufces 2] is liel shown iii Fig.

I one oi said siiriioiiqnismwos will no iii (U111- mi )1101 (ii iii 3 Jaescribed, iii' or Whicl'i, by igrli l; iiiiig tho so;

screw 17, said sleeves (5 can he loz-lwil sc-iriii'vly in :idjiisl'cdposit ioi'i.

For ilii piiiposc of holding i'iHz :iiiiiulm' rack' lfi iii properPOSlllOI) upon lii and ol the suol'ioii-liox I :i, iiioizillir ring 1%liclil against lho oml of the: sin-l lull box l H1021 no such the screwsH1.

is formed Willi :i plurality ol' openings 20, ouch oi which rcgisiorswiili Ulif mi 1110 sow 'iilOll-IMLSSQLQOS 2.

For The piiiposo of applying suction in i each of theSHCIZOI)'P:LSH;LI(S 2 \vlivii iroacl .s a coii'iiiii pomi. iii ilieroi'ziiioii l 17:10 i

Fig. 6, is plririid ii ii'iiisi ciicli mid ol i'lio sui'ri'lombox 1.Each 01" ilio (Dil plain-s 1H m erably is slighl'ly more iliiiiisiiiiiic icii Shape and is provided \"ii'l'i m oiiiimrilr twirlingmginr-iiiiii Sliilii'fl illlilH-I inner end of which is morn, so m; l. 0lie ii to coininijmioalowiili 50v liil oi ilii 2, it being:'iiiiilei'siooil iiiioniir suitable manner, so ii!" in he SLHi ion-boyis ioi'iiied. he S'iiCii(JIl-}')fiSSHQCS 2 will siicri i sively moveacross il'H" open iiiiiri' of ilio sii0t,ioii-sliziinlier 22. plate :21.may be held slal'ioiiary, the siiiiii; provided with a sleeve oriiiliiilzir extension 23, which loosely surrounds rile trunnion or shaft24 oftlie roll. The tubular oxiiension 23 may be held stationary iii anyoiiiinlilo tinimner during the rotation oi the trunnion 24 and roll orbox 1. The suci-ioii exert ml upon the suchioii ghoiiiliers 22 iii,oppositiends of the boilsrves to draw ziir iiiwzim through the inlets 3and siic'l-ioi'i pzissiigmi 2 as saidpassags regislsr with 1% fl siiciiozichambers (luring lhe roi'iiiioii oihis roll.

Fcir tho purpose of (suiting: oi'li some: oi til? ubtion-passagos 2, sothat oiiitli siiciimr clisi'iiibor 22 will lie poriiiiliiizl iii l'( 'i:i-\,i' viili onlyone six-1:1ioii-piisszigr z'il ino l'iriiiz, eiii'liin" the i'li'l piziiiai; 'i is in 'iiivil iii ils iiirqr ii -ix iii wiiiii .iigg. 6, will: ii vziir ol' i-iirn il gro'o {is in each ml which isilinl curved or segiiiii il mii-oll plate or Eimli of valves 26 isprovidegl Willi a I 31. shown in Fig. 5, ending outward throughwoiirvlid slot 28, J'OI'SliOfi iii the and pliiiii 2E. By lo'osei'iingthe sot-scrow 2'7 llio cub-oil valvsrs 26 caii'lio slid around in (hegrooves 25, so Chi-ii their adjoining mule \ill iiiovqjmriizilly acrosslilio iiiiiiar own (and of llm sue (iii-chamber, :mdtliim v iioil'soiimol iliv vxziiii ilo, only h iiiiiiiiiriil'inii Willi iii-i"siiotioiicliziiiilmi' iii om iiiiiv. By moving ilio plains 20 untiliioirlm);

rods, and an annular rack mounted on the periphery of said suction-boxand engagingsaid pinions for adjusting said sleeves.

5. .Asuction-box having a plurality of suc tion-passages, stationary endplates having grooves, a suction-chamlwr connected with each of saidstationary end plates, and out; ofi valves slidably mounted in saidgrooves for. partially closing said suction-chamber.

6. A suction-box having aplurality of suction passages, asuction-chamber adapted to register with a plurality of said suctionassages, said suction-chamber having an e ongated opening, an ad ustableplate covering said opening, and a suction-pipe connected with saidadjustable plate. I

i 7. A suction-box having a plurality of suction-passages formed withtapering inlets, a pair of oppositely-movable sleeves mounted 111 eachof said suction-passages, a revorselythreaded rod in each of saidsuction-passages for moving said sleeves, a pinion on each of Vsaidreversely-threaded rods, an annular rack fitted around the peripheryof said suction- *hoX and engaging said pinions, a set-screwsuctionpassages, stationaryend plates having grooves, a suction-chamberconnected with each of said stationary end plates, cut off valvesmounted in the grooves of said end plates for partially closing eachsuctionchambcr, a curved plate adjustably connected with eachsuction-chamber, and a suction-pipe connected with each of saidadjustable cur'ved plates and communicating with the interior of thesuction-chamber. v

In testimony that I claim the foregoing as my own I. have heretoaffixed. my signature in the presence of two Witnesses.

BION B. FARNHAliI.

Witnesses? J. RMCKINNEY, D. BURLET.

